The UNOP-1514C is a PCI express communication card which is compatible with UNO-4673A, UNO-4683 and ECU-4784, can support 4 SC type Multi-mode Fiber Optic ports. The Fiber Optic LAN with100Base-FX type that the communication follows IEEE 802.3, 802.3u and 802.3x standard. With the fiber transmission distance up to 2km , speed up to 100Mbps and isolated design, the UNOP-1514C is perfect for use in industrial environment, like smart substation.